Add 21/28 and 54/98
21/28 + 54/98 is 255/196.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 98 is 196
Next, find the equivalent fraction of both fractional numbers with denominator 196 - For the 1st fraction, since 28 × 7 = 196,
21/28 = 21 × 7/28 × 7 = 147/196 - Likewise, for the 2nd fraction, since 98 × 2 = 196,
54/98 = 54 × 2/98 × 2 = 108/196 - Add the two like fractions:
147/196 + 108/196 = 147 + 108/196 = 255/196 - So, 21/28 + 54/98 = 255/196
In mixed form: 159/196
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